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linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Sat Nov 17, 2018 6:39 am
by supermilg
Program protected by vmp 3.1.2 will crash in c5 series instance. No matter what kind of linux system: CentOS 、Ubuntu. Only show "Segmentation fault".

However, the program protected by vmp 3.1.2 can run in c4 / m4 series instances, without any problem.

Please help to fix this problem.
Thank you

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Sat Nov 17, 2018 6:40 am
by supermilg
If you need a server to test, I can allocate an test instance for you.

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Sat Nov 17, 2018 6:49 am
by Admin
What about VMProtect 3.2?

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Mon Nov 19, 2018 4:51 am
by supermilg
VMProtect 3.2 is the same phenomenon as VMProtect 3.1.2

demo.c:

Code: Select all

#include <stdio.h>
int main()
{
    printf("This is a test.\n");
    printf("Test done.\n");
    return 0;
}

gcc demo.c -o demo

./demo
This is a test.
Test done.

./demo_vmp
Segmentation fault

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Tue Nov 20, 2018 5:39 pm
by supermilg
Is it due to certain characteristics of the CPU?
The only difference between C4 and C5 instance is the CPU.

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Tue Nov 20, 2018 5:44 pm
by supermilg
Why do you close this report? @Admin

This is a really serious bug ! Is there any solution?

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Tue Nov 20, 2018 5:53 pm
by supermilg
If you need a server to test, I can allocate an test instance for you. You can contact me by my register mail, and I will allocate an C5 instance in AWS for you.

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Tue Nov 20, 2018 6:09 pm
by supermilg
I found the other report : https://techreport.com/forums/viewtopic.php?t=121397
Looks like the same problem.

Intel Xeon(Skylake) Platinum 、intel Xeon(skylake)Gold CPU .

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Wed Nov 21, 2018 12:53 pm
by Admin
Unfortunately we have no idea what happens in c5 series instance of AWS.

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Thu Nov 22, 2018 1:34 am
by supermilg
1) My client asked to run my program on c5 series 's machine, which is a very urgent question
2) This is sure to be a bug in VMProtect, the source code is there for you, why not help debugging it?
I am a paying user, it is your responsibility to solve such bugs, and if you need the environment I can provide.
Looking forward to your reply

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Thu Nov 22, 2018 1:53 am
by supermilg
In addition, my program protected by upx can run on c5 series instance of AWS.

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Thu Nov 22, 2018 2:41 pm
by Admin
Could we connect to such instance with remote debugger?

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Thu Nov 22, 2018 4:30 pm
by supermilg
Please send an email to supermilg@qq.com with your email. I will send you the SSH login private key of the machine, and then you can operate the machine at will.

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Fri Nov 23, 2018 9:13 am
by supermilg
I haven't received your email so far. so, what happened?

Re: linux program protected by vmp 3.1.2 crash directly in c5 series instance of AWS

Posted: Tue Nov 27, 2018 5:27 am
by supermilg
An email including ssh key has sent to you. Check. Thank you!